[PATCH] arm: __pmd_free_tlb(): call page table desctructor (Was: BUG: Bad page state in process true pfn:a8fed on arm)

2020-08-25 Thread Mike Rapoport
On Tue, Aug 25, 2020 at 10:53:22AM +0200, Anders Roxell wrote: > On Tue, 25 Aug 2020 at 10:32, Mike Rapoport wrote: > > > > On Tue, Aug 25, 2020 at 01:03:53PM +0530, Naresh Kamboju wrote: > > > On Mon, 24 Aug 2020 at 16:36, Matthew Wilcox wrote: > > > > > > > > On Mon, Aug 24, 2020 at 03:14:55PM

Re: BUG: Bad page state in process true pfn:a8fed on arm

2020-08-25 Thread Anders Roxell
On Tue, 25 Aug 2020 at 10:32, Mike Rapoport wrote: > > On Tue, Aug 25, 2020 at 01:03:53PM +0530, Naresh Kamboju wrote: > > On Mon, 24 Aug 2020 at 16:36, Matthew Wilcox wrote: > > > > > > On Mon, Aug 24, 2020 at 03:14:55PM +0530, Naresh Kamboju wrote: > > > > [ 67.545247] BUG: Bad page state in

Re: BUG: Bad page state in process true pfn:a8fed on arm

2020-08-25 Thread Mike Rapoport
On Tue, Aug 25, 2020 at 01:03:53PM +0530, Naresh Kamboju wrote: > On Mon, 24 Aug 2020 at 16:36, Matthew Wilcox wrote: > > > > On Mon, Aug 24, 2020 at 03:14:55PM +0530, Naresh Kamboju wrote: > > > [ 67.545247] BUG: Bad page state in process true pfn:a8fed > > > [ 67.550767] page:9640c0ab

Re: BUG: Bad page state in process true pfn:a8fed on arm

2020-08-25 Thread Stephen Rothwell
Hi all, On Tue, 25 Aug 2020 13:03:53 +0530 Naresh Kamboju wrote: > > On Mon, 24 Aug 2020 at 16:36, Matthew Wilcox wrote: > > > > On Mon, Aug 24, 2020 at 03:14:55PM +0530, Naresh Kamboju wrote: > > > [ 67.545247] BUG: Bad page state in process true pfn:a8fed > > > [ 67.550767]

Re: BUG: Bad page state in process true pfn:a8fed on arm

2020-08-25 Thread Naresh Kamboju
On Mon, 24 Aug 2020 at 16:36, Matthew Wilcox wrote: > > On Mon, Aug 24, 2020 at 03:14:55PM +0530, Naresh Kamboju wrote: > > [ 67.545247] BUG: Bad page state in process true pfn:a8fed > > [ 67.550767] page:9640c0ab refcount:0 mapcount:-1024 > > Somebody freed a page table without calling

Re: BUG: Bad page state in process true pfn:a8fed on arm

2020-08-24 Thread Matthew Wilcox
On Mon, Aug 24, 2020 at 03:14:55PM +0530, Naresh Kamboju wrote: > [ 67.545247] BUG: Bad page state in process true pfn:a8fed > [ 67.550767] page:9640c0ab refcount:0 mapcount:-1024 Somebody freed a page table without calling __ClearPageTable() on it.

Re: BUG: Bad page state in process true pfn:a8fed on arm

2020-08-24 Thread Naresh Kamboju
On Mon, 24 Aug 2020 at 15:14, Naresh Kamboju wrote: > > Kernel BUG noticed on arm architecture on linux next 20200824 tag kernel > while running LTP CVE "thp01 -I 120" , LTP mm, LTP hugetlb test cases > and libhugetlbfs test suite. BAD: next-20200820 GOOD: next-20200819 We are trying to bisect

BUG: Bad page state in process true pfn:a8fed on arm

2020-08-24 Thread Naresh Kamboju
Kernel BUG noticed on arm architecture on linux next 20200824 tag kernel while running LTP CVE "thp01 -I 120" , LTP mm, LTP hugetlb test cases and libhugetlbfs test suite. metadata: git branch: master git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git commit: